Answer:

Step-by-step explanation:
- let
be that number

- multiply both sides by



81/4 is the answer , use formula (b/2) squared
Answer:56Step-by-step explanation:
its the miles shes walked
Answer:
Brian can read 0.4 or 4/10 in 1 hour
Step-by-step explanation:
The answer is 4/10 because 20 multiplied by 3 is 60, which equals 1 hour.
So, 2/15 times 3 = 4/10
P.S Can I have brainliest?